Water Reuse
PRABAL BARUA; Maitri BARUA
Abstract
Coastal aquaculture is the most productive export earning sectors of Bangladesh. South-Eastern coast of Bangladesh is the most productive region of coastal aquauculture and millions of people depend on this sectors for livelihood. Three categories of tidal water exchange system based ponds of canal connected, ...
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Coastal aquaculture is the most productive export earning sectors of Bangladesh. South-Eastern coast of Bangladesh is the most productive region of coastal aquauculture and millions of people depend on this sectors for livelihood. Three categories of tidal water exchange system based ponds of canal connected, river connected and pond connected pond were selected to study the nutrient loading and existing health management in the shrimp ponds. The aims of the study were quantified the hydrology of ponds, health evaluation test with the gut content investigation of shrimp body and nutrient loading from the shrimp ponds. It was found that higher nutrient load in the river connected pond also carried the higher growth and survival rate, feed conversion ratio and the highest production of shrimp. Although unplanned expansion and slightly improved traditional system of shrimp culture exists there is still no risk of environmental degradation in the aquatic environment of shrimp farming in Cox’s bazaar region. It was concluded that reuse water or connected pond system for coastal shrimp ponds should not be practiced anywhere in Bangladesh, due to the uncertainity associated with water productivity in such regions.
Urban Water
Adebayo Oluwole Eludoyin
Abstract
Water is an important part of the human life. Sustainable management of water is a major component of the Sustainable Delopment Goal 6, United Nations. Many residents of the middle and low economic countries are not adequately supplied with this important commodity, however, but information is scanty ...
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Water is an important part of the human life. Sustainable management of water is a major component of the Sustainable Delopment Goal 6, United Nations. Many residents of the middle and low economic countries are not adequately supplied with this important commodity, however, but information is scanty about the specifics of the state of drinking water in many relatively small urban areas. This paper is focused on one of the countries within the sub-Saharan Africa such that the selected locations are four important states (Oyo, Ondo, Osun and Ekiti) in the southwest region of Nigeria. The objectives of the study are to evaluate the water supply for drinking purposes and assess the quality of samples from sources of household drinking water in the region. The results showed the comparable differences in water accessibility due to socio-economic structure of the selected areas. Also, there is an extensively poor household drinking water quality in the region, and a support from the public facilities is either inadequate or non-existent. The study recommends the improved and sustainable household water schemes across the region to meet a higher water productivity.
Hydroinformatic
João Miguel Santos; José Jasnau Caeiro; João Carlos Martins; João Filipe Santos; Patrícia Palma
Abstract
The paper presents a study of Internet of Things (IoT) systems used on physical and chemical water quality and resources sensing. The United Nations (UN) Sustainable Development Goals (SDGs) for 2030, declaring a commitment to “Ensure availability and sustainable management of water and sanitation ...
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The paper presents a study of Internet of Things (IoT) systems used on physical and chemical water quality and resources sensing. The United Nations (UN) Sustainable Development Goals (SDGs) for 2030, declaring a commitment to “Ensure availability and sustainable management of water and sanitation for all", is taken as a reference for the ensuing analysis of the literature. The IoT is changing the landscape of environmental resources monitoring and the case of water quality and quantity is no exception. A comparison among IoT based sensing systems is presented. It is focused on: the sensors; data communication hardware and the software protocols and processing devices. The most measured parameters are selected according to a scientific literature sample encompassing the last few years and including over 30 papers. The sample consists of the most relevant papers on the subject. . A general architecture for the collection and processing of water quality data is discussed. This data assists to water productivity investigations. The architecture integrates the sensing of physical and chemical parameters, data communication and processing.
